Base unit for a wheelchair



FIG. 1 is a perspective view from the front, one side and above of the base unit for a wheelchair;

FIG. 2 is a perspective view from behind, one side and above of the base unit for a wheelchair;

FIG. 3 is a view from a first side of the base unit for a wheelchair;

FIG. 4 is a view from a second side of the base unit for a wheelchair;

FIG. 5 is a front view of the base unit for a wheelchair;

FIG. 6 is a back view of the base unit for a wheelchair;

FIG. 7 is a plan view of the base unit for a wheelchair; and,

FIG. 8 is an underside view of the base unit for a wheelchair. 

The ornamental design for the base unit for a wheelchair, as shown as described. 